21000643179

素因数分解:

$3^1\times {\mathrm{61}}^1\times {\mathrm{509}}^1\times {\mathrm{225457}}^1$

素因数の和:226030

約数の個数: 16

約数和(自身を含む): 28515927840

約数和(自身を除く): 7515284661

約数列:

[1, 3, 61, 183, 509, 1527, 31049, 93147, 225457, 676371, 13752877, 41258631, 114757613, 344272839, 7000214393, 21000643179]

約数ペア:

[(1, 21000643179), (3, 7000214393), (61, 344272839), (183, 114757613), (509, 41258631), (1527, 13752877), (31049, 676371), (93147, 225457)]